This is my first post here and sorry if this has been asked before. I've searched for my answers and couldn't find much.

Here's a little background.
I've been riding for 3 seasons, maybe a total of 30 times.
My current board is a burton twin 161, I'm 5'10" 225 (going to be dropping to 200) shoe size 10 to 10.5.

I am having a ton of trouble riding that burton twin. I can ride for a short while and my feet hurt, I have trouble turning on it and I just really don't like it, not sure if because it's cambered or what.

My friend let me ride his libtech (it's a rocker) 147, yes a 147 and I've had so much fun on it, I can turn easily and it doesn't get squirly (at my speeds)

I am looking at a burton nug and I'm trying to figure out what's best for a beginner/early intermediate.

The two boards I'm looking at is a burton nug 11/12 restricted directional (they have 148 and 152's in stock) and also a burton harvest 151.
I believe the nug is a rocker or maybe a v-rocker and the harvest is a camber board.

Without being able to try both boards on the snow I'm trying to figure out what would be better for me.
I absolutely love my friends 147 (rocker), but it's a little too small for me and according to the snowboard calcs it's waaaayyyyy too small for me.
Does anyone have any insight on the burton nug and the burton harvest. My main concern being, if I don't like my burton twin 161 will it feel the same on the burton harvest 151 since it's cambered?

I also am trying to learn riding switch as it alleviates some pain in my feet always riding on one side.
I don't know if the burton nug restricted directional can go switch.